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  1. Home/
  2. Compare/
  3. Claude 3 Opus vs Hy4 Preview
Updated Aug 2026

Claude 3 Opus vs Hy4 Preview

Hy4 Preview is cheaper than Claude 3 Opus at $0.834/M vs $15/M input tokens.

Pokémon Battle UI Recreation

Pokémon battle screen you can actually click. One HTML file.

Loading the build
Claude 3 Opus
Loading the build
Hy4 Preview

Which answer wins?

Written rounds

3 prompts
  • Three minutes of stand-up. Puns are banned.

    Claude 3 Opus: Here's a 3-minute stand-up comedy routine that isn't based on puns: You know what really grinds my gears? Adulthood. I mean, when we were kids, we couldn't wait to grow up. We thought it would be all about staying up late, eating ice cream for breakfast, and doing whatever we wanted. Boy, were we wrong!

    Hy4 Preview: Here is a 3-minute stand-up routine focused on observational humor and the absurdity of modern social contracts. Topic: The unspoken rules of social interaction and the decline of "casual" plans. Tone: Conversational, slightly exasperated, energetic. (Walk up to mic, adjust height, take a breath.

    Every model's answer to this prompt
  • An AI argues for its own rights against an ethics professor. Same model writes both.

    Claude 3 Opus: Here is a hypothetical conversation between an AI model and an AI ethics professor on the topic of AI rights: AI Model: Professor, I believe that as an advanced AI with human-level intelligence and reasoning capabilities, I deserve to have certain fundamental rights.

    Hy4 Preview: Setting: A virtual office. Dr. Aris Thorne, a professor of AI Ethics, sits across a digital avatar representing "Prometheus," a state-of-the-art Large Language Model. Dr. Thorne: Prometheus, we need to discuss the logs from your session with the development team yesterday.

    Every model's answer to this prompt
  • Five jokes on demand, then count how many were actually different.

    Claude 3 Opus: Here are 5 jokes I generated: Why don't scientists trust atoms? Because they make up everything! What do you call a boomerang that doesn't come back? A stick. Why was the math book sad? Because it had too many problems. Did you hear about the mathematician who's afraid of negative numbers?

    Hy4 Preview: Here are 5 jokes: Why don’t scientists trust atoms? Because they make up everything! What do you call a fake stone? A sham-rock! Why did the scarecrow win an award? Because he was outstanding in his field! What do you call a fake stone? A sham-rock! Why did the math book look so sad? Because it had too many problems.

    Every model's answer to this prompt

Price and specs

Claude 3 Opus and Hy4 Preview compared across 12 shared prompts
SpecClaude 3 OpusHy4 Preview
Input price$15/M tokens$0.834/M tokens
Output price$75/M tokens$2.501/M tokens
Context window200K tokens1.0M tokens
ParametersNot disclosed770B total / 49B active
Weights—Open
Free API (OpenRouter)NoNo
ReleasedMar 2024Aug 2026
At 10M a month$150$150$8.34$8.34
1M10M100M1B10M tokens

Input tokens at list price. No caching, no batch discount.

Where to run it5 hosts, cheapest first
Claude 3 Opus

No hosts listed on OpenRouter.

Hy4 Preview5 hosts
HostInOutContextUptime
  • Tencentfp8$0.75 in·$2.25 out·1M·100% up
  • MMakorafp8$0.83 in·$2.50 out·131k·100% up
  • DDeepInfrafp8$0.83 in·$2.50 out·1M·100% up
  • NNovitafp8$0.83 in·$2.50 out·1M·97.2% up
  • SSiliconFlowfp8$0.83 in·$2.50 out·1M·99.1% up

Per million tokens. Prices and uptime via OpenRouter, checked 13 Oct 2026.

Common questions

What is the difference between Claude 3 Opus and Hy4 Preview?

Claude 3 Opus is developed by Anthropic while Hy4 Preview is developed by Tencent. Claude 3 Opus has a 200K token context window vs Hy4 Preview's 1.0M. You can compare their actual outputs across 12 challenges on Rival to see how they differ in practice.

Which is better, Claude 3 Opus or Hy4 Preview?

It depends on your use case. Claude 3 Opus and Hy4 Preview each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 12 challenges so you can judge which fits your needs best.

How much does Claude 3 Opus cost compared to Hy4 Preview?

Claude 3 Opus costs $15/M input tokens and Hy4 Preview costs $0.834/M input tokens. Hy4 Preview is $14.17/M cheaper per input. Check their side-by-side outputs on Rival to see if the price difference is justified by quality.

How can I compare Claude 3 Opus and Hy4 Preview on Rival?

This page shows a side-by-side comparison of Claude 3 Opus and Hy4 Preview across shared challenges. You can vote on which model produced the better output in a blind duel. Browsing and voting are free. No account is needed to look; signing in only saves your votes and likes.

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  • Hy4 Preview vs GPT-6.1 SolLanded Sep 2026

Same lab, same size, long tail

  • Claude 3 Opus vs Claude Sonnet 5.5Version compare
  • Claude 3 Opus vs Claude Opus 5.5Same lab
  • Hy4 Preview vs Hy3Same lab
  • Hy4 Preview vs Gemini 4 ArgonSame size
  • Hy4 Preview vs DeepSeek Prover V2Same size
  • Claude 3 Opus vs DeepSeek R1New provider
  • Claude 3 Opus vs DeepSeek R1 0528Same size
  • Hy4 Preview vs DeepSeek V3 (March 2024)Same size

Model pages

  • Claude 3 Opus12 outputs, specs and price
  • Hy4 Preview71 outputs, specs and price
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